<span>say the amount in jan is x
we know if we subtract off 14.2% of x (from x) we get Feb's amount
so x - 0.142x = 742,513.20
(notice we change 14.2% to 14.2/100 -- that is what % is short for -- or ,as a decimal 0.142)
we have 1x - 0.142x or (1-0.142)x on the left side
0.858 x = 742513.20
</span><span>divide both sides by 0.858 to "solve for x"
</span>
x= <span>865,400</span>
Answer:
IT IS OP
Step-by-step explanation:
The original class had 32 students. 25% of 32 is 8 and 32+8=40
Answer:
see explanation
Step-by-step explanation:
2 chords intersecting inside a circle , then the product of the parts of one chord is equal to the product of the parts of the other chord.
6
BE × ED = AE × CE , that is
10 × 3x = 12(2x + 1) ← distribute parenthesis by 12
30x = 24x + 12 ( subtract 24x from both sides )
6x = 12 ( divide both sides by 6 )
x = 2
then
ED = 3X = 3(2) = 6
7
RJ × JP = SJ × JQ , that is
6 × 3x = 4(4x + 1) ← distribute parenthesis by 4
18x = 16x + 4 ( subtract 16x from both sides )
2x = 4 ( divide both sides by 2 )
x = 2
then
RP = RJ + JP = 6 + 3x = 6 + 3(2) = 6 + 6 = 12
